Amazon Aurora read-only slaves slowly increase to 100% CPU and dieHow can I increase cpu performance on Amazon EC2 running instance?CPU load on CentOS Plesk server between 50-100% but processes only add up to around 10%Windows 2003/2008 terminal server, Application using 95-100% CPU when crashed, auto kill process?CPU being pushed to 100% by a process, trying to track and eliminate the problemhow to fix slow query of mysql on Amazon and CPU 100% on the small rds instanceAmazon RDS: Sudden increase in Read IOPS and ThroughputSudden increase in CPU usage and server response timeXenServer 6.2 VM 100% CPU and 100% memory usage and won't bootApache and MySQL processes running at 100% CPUAWS ElasticBeanstalk and Laravel CPU 100%
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Amazon Aurora read-only slaves slowly increase to 100% CPU and die
How can I increase cpu performance on Amazon EC2 running instance?CPU load on CentOS Plesk server between 50-100% but processes only add up to around 10%Windows 2003/2008 terminal server, Application using 95-100% CPU when crashed, auto kill process?CPU being pushed to 100% by a process, trying to track and eliminate the problemhow to fix slow query of mysql on Amazon and CPU 100% on the small rds instanceAmazon RDS: Sudden increase in Read IOPS and ThroughputSudden increase in CPU usage and server response timeXenServer 6.2 VM 100% CPU and 100% memory usage and won't bootApache and MySQL processes running at 100% CPUAWS ElasticBeanstalk and Laravel CPU 100%
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We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
add a comment |
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
We have a master database instance hosted on AWS Aurora (mysql) and have many read-only slaves being replicated from it. The master and the 4-12 autoscaling slaves are currently of db.r4.4xlarge size and engine version: 5.7.12.
Each slave comes online and performs for a few days but over that time its CPU usage slowly increases until each one has to be individually killed. Once killed another is automatically spun up and it continues.
Here's the performance graph of the slaves:
As you can see at 11pm our warehouse closes and CPU utilisation falls until the next day when it spikes and climbs above the previous day's. This increases day on day until it reaches 100% and has to be killed.
Have any of you guys every seen this pattern before and could give us a hint on where the problem might lie?
mysql amazon-web-services cpu-usage mysql-replication
mysql amazon-web-services cpu-usage mysql-replication
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
asked May 8 at 14:12
Gary WilloughbyGary Willoughby
47210
47210
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performingSELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...
– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. Include SHOW CREATE TABLE and EXPLAIN SELECT ...– Rick James
May 10 at 0:49
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. Include SHOW CREATE TABLE and EXPLAIN SELECT ...– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37
add a comment |
1 Answer
1
active
oldest
votes
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
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1 Answer
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1 Answer
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oldest
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votes
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
add a comment |
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
I recommend to enable Amazon RDS Performance Insights to get tips about what may consume CPU.
With such symptoms and if no clue from SQL traffic, it would be helpful to use Linux "perf" to identify methods which consumes CPU (as far as binaries still have symbols - aka not striped) to confirm it does not come from internal replication management - but it cannot be used with RDS instances.
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
answered May 13 at 11:50
Yves MartinYves Martin
5442520
5442520
add a comment |
add a comment |
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I'd contact AWS Support on this one.
– ceejayoz
May 8 at 14:17
AWS support have been a bit useless to be honest and want to move us to another increased cost support tier for any further help. So before that happens we are entertaining other opinions.
– Gary Willoughby
May 8 at 14:32
High CPU usage almost always implies poorly performing
SELECTs. Find a slow one, and present it to us for critique. IncludeSHOW CREATE TABLEandEXPLAIN SELECT ...– Rick James
May 10 at 0:49
Can you try to gather details about, 1. Is there any network latency, 2. What is the IOPS stats says 3. enable slow queries, inspect and optimize them. 4. Is there any memory pressure.
– asktyagi
May 11 at 14:37